错误信息如下：
[ERROR] No compiler is provided in this environment. Perhaps you are running on a JRE rather than a JDK? [INFO] 1 error [INFO] ------------------------------------------------------------- [INFO] ------------------------------------------------------------------------ [INFO] BUILD FAILURE [INFO] ------------------------------------------------------------------------ [INFO] Total time: 1.103 s [INFO] Finished at: 2019-08-26T17:41:36+08:00 [INFO] ------------------------------------------------------------------------ [ERROR] Failed to execute goal org.apache.maven.plugins:maven-compiler-plugin:3.8.1:compile (default-compile) on project springmvc: Compilation failure [ERROR] No compiler is provided in this environment. Perhaps you are running on a JRE rather than a JDK? [ERROR] -> [Help 1] [ERROR] [ERROR] To see the full stack trace of the errors, re-run Maven with the -e switch. [ERROR] Re-run Maven using the -X switch to enable full debug logging. [ERROR] [ERROR] For more information about the errors and possible solutions, please read the following articles: [ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/MojoFailureException
根据错误信息提示：No compiler is provided in this environment. Perhaps you are running on a JRE rather than a JDK?
这个环境中没有提供编译器。也许您运行的是JRE而不是JDK?
1：首先查看 Eclipse-->Window-->preferences-->Java-->Installed JREs
果然java编译环境是jre，而maven项目的运行需要指定一个符合配置的JDK环境，所以我们配置一个jdk目录，并且指定为jdk目录,同时为了防止出错，我把jre目录删除掉了
2：项目右键-->build path-->configure build path-->java Build Path-->接着图片操作
3.项目右键-->run as -->run configurations..--> jre -->execution environment选择刚刚配置的jdk-->run
以上！